Media grid: Don't show a misleading message for an empty library.

This uses the existing string from the list table. We should revisit a better overall experience for the two situations (empty library vs. search with no results) in 4.1.

props voldemortensen.
fixes #29404.

Built from https://develop.svn.wordpress.org/trunk@29655


git-svn-id: http://core.svn.wordpress.org/trunk@29429 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/media.php

@@ -3020,7 +3020,7 @@ function wp_enqueue_media( $args = array() ) {
 
  		// Media Library
  		'editMetadata' => __( 'Edit Metadata' ),
- 		'noMedia'      => __( 'No media found. Try a different search.' ),
+ 		'noMedia'      => __( 'No media attachments found.' ),
 	);
 
 	/**